view target-utils/libcommon/cmd_r8.c @ 433:2d8ab1b0df8d

rvinterf/doc/tfc139.usage: written doc/Compal-unlock: typo fix
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sun, 22 Jun 2014 00:17:44 +0000
parents f4fc449a64ea
children
line wrap: on
line source

/*
 * r8 hexaddr -- read an 8-bit register or memory location
 */

#include <sys/types.h>
#include "types.h"

void
cmd_r8(argbulk)
	char *argbulk;
{
	char *argv[2];
	u_long addr;

	if (parse_args(argbulk, 1, 1, argv, 0) < 0)
		return;
	if (parse_hexarg(argv[0], 8, &addr) < 0) {
		printf("ERROR: argument must be a valid 32-bit hex address\n");
		return;
	}
	printf("%02X\n", *(volatile u8 *)addr);
}